Kia Optima Hybrid: Brake System / AHB(Active Hydraulic Boost) System

Troubleshooting

Troubleshooting SymptomSuspect AreaReferenceLower pedal or spongy pedal1. Integrated Brake Actuation Unit (Air in)air·bleed2. AHB system (Fluid leaks)replace3. Piston seals in IBAU (Worn or damaged)replaceBrake ...

Description and Operation

Description Regeneration Brake System During deceleration or braking of an electric vehicle or HEV, the drive motor acts as an alternator and charges the battery by converting the vehicle’s kinetic energy ...

Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Engine Coolant Temperature Sensor (ECTS) Repair procedures


Inspection 1. Turn the ignition switch OFF. 2. Disconnect the ECTS connector. 3. Remove the ECTS. 4. After immersing the thermistor of the sensor into engine coolant, measure resistance between the ECTS terminals 3 and 4. 5. Check that the resistance is within the specification. TemperatureResistance ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Front Driveshaft Repair procedures


Replacement 1. Loosen the wheel nuts slightly. Raise the vehicle, and make sure it is securely supported. 2. Remove wheel nuts, front wheel and tire from front hub. Tightening torque: 88.2 ~ 107.8 N.m (9.0 ~ 11.0 kgf.m, 65.0 ~ 79.5 lb-ft)     Be careful not to damage to the wheel nuts when ...

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